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Online Assessment DSA / Coding Machine Coding Low-Level Design

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Online Assessment DSA / Coding Machine Coding Low-Level Design System Design Tech Deep-Dive Hiring Manager Behavioral / HR

Round 03 · 60 questions

Machine Coding

Build a working component or service under time pressure.

Frontend machine-coding round? Practise building UI under time pressure, with an in-browser editor and tests, on FrontendPro.↗

1Password
Build an image carousel with autoplay and swipe.
FrontendNew Grad / JuniorMedium◆ Commonly asked
#react#ui
PracticeGeeksforGeeks Search
1Password
Build a multi-step form with validation.
FrontendNew Grad / JuniorMedium◆ Commonly asked
#react#forms
PracticeGeeksforGeeks Search
1Password
Implement cursor-based pagination over a sorted dataset.
BackendMidMedium◆ Commonly asked
#pagination#api
PracticeGeeksforGeeks Search
1Password
Build a file-upload service with chunking and resume.
BackendMidHard◆ Commonly asked
#streaming#storage
PracticeGeeksforGeeks Search
1Password
Implement a token-bucket rate limiter as a service.
Full-stackSeniorMedium◆ Commonly asked
#rate-limit
PracticeGeeksforGeeks Search
1Password
Build a nested, collapsible comment thread.
Full-stackSeniorMedium◆ Commonly asked
#react#recursion
PracticeGeeksforGeeks Search
1Password
Build a star-rating component (controlled + accessible).
FrontendSeniorEasy◆ Commonly asked
#react#a11y
PracticeGeeksforGeeks Search
1Password
Build a countdown timer with pause and resume.
FrontendSeniorEasy◆ Commonly asked
#react#state
PracticeGeeksforGeeks Search
Abridge
Implement an idempotent "charge" endpoint.
Full-stackMidHard◆ Commonly asked
#idempotency#payments
PracticeGeeksforGeeks Search
Abridge
Build a "Wordle" clone with keyboard input.
Full-stackMidMedium◆ Commonly asked
#react#state
PracticeGeeksforGeeks Search
Abridge
Implement a bulk-upsert endpoint with validation.
BackendNew Grad / JuniorMedium◆ Commonly asked
#api#validation
PracticeGeeksforGeeks Search
Abridge
Build auth middleware that verifies a JWT.
BackendNew Grad / JuniorMedium◆ Commonly asked
#auth#security
PracticeGeeksforGeeks Search
Abridge
Build a carousel/image slider.
FrontendNew Grad / JuniorMedium◆ Commonly asked
#react#ui
PracticeGeeksforGeeks Search
Abridge
Build a kanban board with drag and drop.
FrontendNew Grad / JuniorHard◆ Commonly asked
#react#dnd
PracticeGeeksforGeeks Search
Acko
Implement a JSON config loader with env overrides.
BackendSeniorEasy◆ Commonly asked
#config
PracticeGeeksforGeeks Search
Acko
Build a file-upload service with chunking and resume.
BackendSeniorHard◆ Commonly asked
#streaming#storage
PracticeGeeksforGeeks Search
Acko
Build a debounced autocomplete/search box with keyboard nav.
FrontendMidMedium◆ Commonly asked
#react#debounce#a11y
PracticeGeeksforGeeks Search
Acko
Build a countdown timer with pause and resume.
FrontendMidEasy◆ Commonly asked
#react#state
PracticeGeeksforGeeks Search
Acko
Build an infinite-scrolling list with virtualization.
Full-stackMidHard◆ Commonly asked
#react#virtualization#perf
PracticeGeeksforGeeks Search
Acko
Parse and evaluate a simple expression/DSL.
Full-stackMidMedium◆ Commonly asked
#parsing
PracticeGeeksforGeeks Search
Acko
Build an in-memory rate limiter as a middleware.
BackendNew Grad / JuniorMedium◆ Commonly asked
#rate-limit#middleware
PracticeGeeksforGeeks Search
Acko
Build a webhook receiver with signature verification.
BackendNew Grad / JuniorMedium◆ Commonly asked
#security#api
PracticeGeeksforGeeks Search
Activision Blizzard
Build a file-upload service with chunking and resume.
Full-stackNew Grad / JuniorHard◆ Commonly asked
#streaming#storage
PracticeGeeksforGeeks Search
Activision Blizzard
Build a carousel/image slider.
Full-stackNew Grad / JuniorMedium◆ Commonly asked
#react#ui
PracticeGeeksforGeeks Search
Activision Blizzard
Build auth middleware that verifies a JWT.
BackendSeniorMedium◆ Commonly asked
#auth#security
PracticeGeeksforGeeks Search
Activision Blizzard
Build a URL health checker with a concurrency limit.
BackendSeniorMedium◆ Commonly asked
#concurrency
PracticeGeeksforGeeks Search
Activision Blizzard
Build a data table with sorting, filtering and pagination.
FrontendMidHard◆ Commonly asked
#react#table
PracticeGeeksforGeeks Search
Activision Blizzard
Build a countdown timer with pause and resume.
FrontendMidEasy◆ Commonly asked
#react#state
PracticeGeeksforGeeks Search
Activision Blizzard
Build a tic-tac-toe game with win detection.
Full-stackMidEasy◆ Commonly asked
#react#state
PracticeGeeksforGeeks Search
Activision Blizzard
Build a toast / notification queue.
Full-stackMidMedium◆ Commonly asked
#react#state
PracticeGeeksforGeeks Search
Activision Blizzard
Build a mini ORM query builder (select/where/join).
BackendNew Grad / JuniorHard◆ Commonly asked
#parsing#sql
PracticeGeeksforGeeks Search
Activision Blizzard
Design and build a URL-shortener service (API + storage).
BackendNew Grad / JuniorMedium◆ Commonly asked
#api#hashing
PracticeGeeksforGeeks Search
Adobe
Implement a JSON config loader with env overrides.
Full-stackNew Grad / JuniorEasy◆ Commonly asked
#config
PracticeGeeksforGeeks Search
Adobe
Build a "polling" progress UI that updates from an API.
Full-stackNew Grad / JuniorMedium◆ Commonly asked
#react#async
PracticeGeeksforGeeks Search
Adobe
Build an in-memory rate limiter as a middleware.
BackendSeniorMedium◆ Commonly asked
#rate-limit#middleware
PracticeGeeksforGeeks Search
Adobe
Build a CSV importer that streams and validates rows.
BackendSeniorMedium◆ Commonly asked
#streaming#validation
PracticeGeeksforGeeks Search
Adobe
Build a countdown timer with pause and resume.
FrontendMidEasy◆ Commonly asked
#react#state
PracticeGeeksforGeeks Search
Adobe
Build a kanban board with drag and drop.
FrontendMidHard◆ Commonly asked
#react#dnd
PracticeGeeksforGeeks Search
Adobe
Build an accessible tabs component with keyboard nav.
Full-stackMidMedium◆ Commonly asked
#react#a11y
PracticeGeeksforGeeks Search
Adobe
Implement a job queue with retries and backoff.
Full-stackMidHard◆ Commonly asked
#queue#reliability
PracticeGeeksforGeeks Search
Affirm
Build a color-picker with hex/rgb sync.
FrontendMidMedium◆ Commonly asked
#react#ui
PracticeGeeksforGeeks Search
Affirm
Build a stopwatch with lap times.
FrontendMidEasy◆ Commonly asked
#react#state
PracticeGeeksforGeeks Search
Affirm
Implement an LRU + TTL cache library.
Full-stackMidHard◆ Commonly asked
#cache#ttl
PracticeGeeksforGeeks Search
Affirm
Build a carousel/image slider.
Full-stackMidMedium◆ Commonly asked
#react#ui
PracticeGeeksforGeeks Search
Affirm
Implement a JSON config loader with env overrides.
BackendNew Grad / JuniorEasy◆ Commonly asked
#config
PracticeGeeksforGeeks Search
Affirm
Build an in-memory pub/sub with topic subscriptions.
BackendNew Grad / JuniorMedium◆ Commonly asked
#pub-sub
PracticeGeeksforGeeks Search
Airbnb
Implement a JSON config loader with env overrides.
BackendSeniorEasy◆ Commonly asked
#config
PracticeGeeksforGeeks Search
Airbnb
Build a background job runner with priorities.
BackendSeniorMedium◆ Commonly asked
#queue#workers
PracticeGeeksforGeeks Search
Airbnb
Build a "Wordle" clone with keyboard input.
FrontendMidMedium◆ Commonly asked
#react#state
PracticeGeeksforGeeks Search
Airbnb
Build an accessible accordion with single/multi open.
FrontendMidMedium◆ Commonly asked
#react#a11y
PracticeGeeksforGeeks Search
Airbnb
Build a REST endpoint with pagination, filtering and sorting.
Full-stackMidMedium◆ Commonly asked
#api#pagination
PracticeGeeksforGeeks Search
Airbnb
Build a "connect four" game with win detection.
Full-stackMidMedium◆ Commonly asked
#react#state
PracticeGeeksforGeeks Search
Airbnb
Build an in-memory pub/sub with topic subscriptions.
BackendNew Grad / JuniorMedium◆ Commonly asked
#pub-sub
PracticeGeeksforGeeks Search
Airbnb
Build a webhook receiver with signature verification.
BackendNew Grad / JuniorMedium◆ Commonly asked
#security#api
PracticeGeeksforGeeks Search
Airtable
Design and build a URL-shortener service (API + storage).
BackendSeniorMedium◆ Commonly asked
#api#hashing
PracticeGeeksforGeeks Search
Airtable
Implement an idempotent "charge" endpoint.
BackendSeniorHard◆ Commonly asked
#idempotency#payments
PracticeGeeksforGeeks Search
Airtable
Build an accessible tabs component with keyboard nav.
FrontendMidMedium◆ Commonly asked
#react#a11y
PracticeGeeksforGeeks Search
Airtable
Build a modal/dialog with focus trapping.
FrontendMidMedium◆ Commonly asked
#react#a11y
PracticeGeeksforGeeks Search
Airtable
Build a form builder that renders from a JSON schema.
Full-stackMidHard◆ Commonly asked
#react#forms
PracticeGeeksforGeeks Search
Airtable
Build a star-rating component (controlled + accessible).
Full-stackMidEasy◆ Commonly asked
#react#a11y
PracticeGeeksforGeeks Search